drop off burned lights at your municipal waste depot or hazardous waste drop-off event.
retailers that may accept burned out CFLs include RONA, Canadian Tire and Ikea.
You hear about how great CFLs are, but one reason stands out: energy efficiency. CFLs are up to four times more efficient than incandescent bulbs. You can replace a 100-watt incandescent bulb with a 22-watt CFL and get the same amount of light. CFLs use 50- to 80-percent less energy than incandescent lights.
A compact fluorescent lamp (CFL), also called compact fluorescent light, energy-saving light, and compact fluorescent tube, is a fluorescent lamp designed to replace an incandescent light bulb; some types fit into light fixtures designed for incandescent bulbs.